Incubator-heater.



P. M. WICKSTRUM.'

IN GUBATOR HEATER.

APPLICATION FILED JAN.11,1907,

Patented Dec. 15, 1908 TNW/15m copper or other material.

`UNITED sTATEs .PATENT oEEIoE.

INCUBATOR-EEATER.

Specification ofLetters Patent.

Patented Dec. 15, 1908.

Application led January 11'; 1907. Serial No. 351.885.

To all 'whom it may concern:

Be it known that l, PETER M. \VICK.

s'rRUM, a citizen ofthe United States,y residing at Lincoln, in the county of Lancaster and State of Nebraska, have invented a new and useful Incubator-Heater, of which the followingis a specication.

This invention has relation to incubator heaters and it consists in the novel construction and arrangement of its parts as hereinafter described. A

The object of the invention is to provide a hot water heater for incubatore and brooders which consists primarily of a heating r `tank surrounded by a heat retaining drum.

The said tank is of special construction and is connected with a radiator whichv is lo# cated within the incubator or broeder'. The heating medium may be a lamp or its equivalent and the device cooperates with a damper for regulating the intensity of the heat.

1n the accompanying drawing :-'I *`igure 1 is a vertical sectional View ofA the heater, and

Fig. 2 is a horizontal sectional view of the,

upper portion thereof. .Fig. 3' is a detail View in vertical section showing the locationi of the hood and the pipe 4connecting it with' the radiator.

The tank 1 is provided'with the concenl trically positioned vertically 'disposed con"- ical tube 2 which is provided' iu'itsupper portion with a .transversely'extendinv connection or pipe 3. "The topof the said tank 1v is provided with a water inlet nozzle v3 which is closed by a ca' 4 said capl having avent 5. Through sai opcningwater'may be introduced into the .tank 1 .while the vent in the cap permits air and steam toescape therefrom. The drum 6 surrounds the major portion of the tank 1 and is provided at .its

top with a series of openin 7. The bottom y of the said drum 6 is provi ed with an openincr 8 which is adapted to receive the lamp' chimney 9. The said opening 8 is of such diameter as to space the upper end of the chimney 9 from the inner side of the tube 2. The radiator 10 is preferabl rectangular in plan and is made of metalic piping of The by-pass 11 connects the opposite sides of the said radiator together. The pipe 12 connects with the said radiator' upon one side of the partition 13. The opposite'end of the said pipe connects with the tankl at a point opposite vone of the ends of the cross-connectlon 3.

` The pipe i4 connects with the radiator 10 upon the opposite side ofthe partition 13 from the pipe 12. The other end ofthe pipe 14 connects with the tank 1 under the -hood 15 which is located within the said tank and which is provided with an opening near the lower end of the tank. The upper /end of thehood 15 is provided with a vent 16 in its side which permits the escape of Steam and air from the said hood. The bypass 11 is' provided with a partition 17 which in turn is provided with a minute opening 18.l The damper 19 is arranged to operate over the upper end of the tube 2in the usual manner.

The operation of the' device is as follows :--The tank 1, having been filled with water and the lamp chimney 9 inserted in the tube 2, the heat from the said chimney passes up through the tube 2 heating the same and the cross connection 3. Thus the Water in the tank 1 is heated' and the hot water will rise to the surface' of the tankl from whence it will pass through the pi e l 12 into-theradiator 10. lBy reason of t e fact that the partition 13 is located in the radiator 10 between the pipes 12 and 14 the -heated water is compelled to make the 'cir-l c'uit of the said radiator beforeiit can pass out through the pipe 14C. As the said radiator islocated in the incubator or brooder the latter is heatedby the hot water circulation above described. When the water passes from the pipe 14 back into the-tank 1 it is introduced under' the hood 15 and must descend to the lower portion of the tank 1 before it can again commingle with the water of the tank. Thus the water of lower temperature is returned from the radiator and introduced into the tank at the lower portion thereof where it is again heated and circulated as above described. The crossconnection 3 has one of its ends disposed opposite the end of the pipe 12 which connects with the tank 1- thus the heated water is short circuited or led directly across from one side of the tank to the said pipe 12 without having -to pass entirely around the tube 2. This prevents water of hi her temperature from being retained in t e tank While water of lower temperature is circulated through' the said radiator. In the radiator 10 it will be understood that the heated Water will en'ter the'by-pass 11; but in order to prevent a circulation of the full capacity of the by-pass 11 the partition 17 is provided and. said partition is provided with the opening 18 thrbugh which a small quantity of heated water may pass in order to prevent the water within the said byass 11 from becoming stagnant and lowermg in temperature. In other words the water that passes through the opening 18 Consequently, the direct passage of the heat from the chimney 9 through the said tube is obstructed or checked entirely. Consequently the said heat will pass from the upper end of the chimney 9 down' under the lower edge of the tank 1 and. up along the outer side of the samefand within the drum 6 and out of the said drum throuvh the openings 7. Thus the heating sur ace of the tank 1 is automaticallyncreased. At the same time the said drum holds the lamp chimney 9 in proper place and when the heatis passing directly from the said chimney through the tube 2 the said drum protects the tank' 1 from external atmospheric Conditions. l

Having described my invention what I claim as new and desire to secure by Letters-Patent is An incubator heater consisting of a hot air drum having an opening in its bottom for the supply of hot air, and a series of openings in its top for the escape of hot air; a

water tank suspended in said drum, and having a water inlet nozzle in 4its top with a cap, and vent in the cap; a hood mounted on the inner side of the tank withan open lower end near the lower end-of the tank,

said hood extending to the 4top of the tank and having a vent near its upper end; a conical /tube located in the tank and having the edge of its open lower end joined to the lower edge of the tank, and its u per end projecting through the up er en of the tank, and having a cross tu e with its ends opening into the tank; a damper at the4 upper end of the conical tube; 'a radiator formed of piping with a by-pass connecting opposite pipes of the radiator and having a partition at one end with a restricted opening, and a second partition in the radiator pipe adjacent to the heater; a pipe connect- 111g the tank with the radiator on one side of the Second partition to conduct water to the radiator; and a pipe connecting the radiator on the other side of the second partition with the upper end of thehood to return water from the radiator to the water' PETER M. WICKSTRUM.

Witnesses C. M. WICKSTRUM, I B. FRANK. 

